Bought this for my VNL860 semi. The best choice ever. It's firm and great for my spine. So far got a very good sleep on it. Got it only for a couple of weeks , so can't tell anything about durability.
It seems comfortable and pressure reducing. The pump is somewhat odd in it's functioning. Feels durable, sturdy and lightweight. 32years only roho; I took a chance with this brand this time. Time will tell.
